一、开首语 Pardon me, though a stranger to you personally, for taking liberty to address you these few lines. As I have not heard of you for long, I feel anxious. I must apologize for not having written to you previously. Please pardon my long in writing to you. Pardon me for neglect when you honored me with a visit the other day. Having mislaid your address, I have not been able to reply sooner. ..